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8ff54bb6 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | ||
16 | /* $Id$ */ | |
17 | ||
3d1463c8 | 18 | //----------------------------------------------------------------------------- |
8ff54bb6 | 19 | /// \class AliMUONTriggerCircuit |
20 | /// Contains as data members the Y positions of the X declusturized strips and | |
21 | /// the X positions of the (doubled or not) Y strips. | |
22 | /// This is used to associate the global positions to the fired strips of the | |
23 | /// local trigger output (see AliMUONTrackReconstructor::MakeTriggerTrack) | |
78649106 | 24 | /// |
25 | /// \author Philippe Crochet (LPCCFd) | |
3d1463c8 | 26 | //----------------------------------------------------------------------------- |
8ff54bb6 | 27 | |
28 | #include "AliMUONTriggerCircuit.h" | |
afeb2b33 | 29 | #include "AliMUONConstants.h" |
da142235 | 30 | #include "AliMUONGeometryTransformer.h" |
8ff54bb6 | 31 | |
8ff54bb6 | 32 | #include "AliMpTrigger.h" |
33 | #include "AliMpSlat.h" | |
34 | #include "AliMpPCB.h" | |
35 | #include "AliMpSegmentation.h" | |
36 | #include "AliMpVSegmentation.h" | |
866c3232 | 37 | #include "AliMpCathodType.h" |
7103ac2d | 38 | #include "AliMpDDLStore.h" |
39 | #include "AliMpLocalBoard.h" | |
40 | #include "AliMpConstants.h" | |
da142235 | 41 | #include "AliMpPad.h" |
168e9c4d | 42 | #include "AliMpEncodePair.h" |
8ff54bb6 | 43 | |
44 | #include "AliRun.h" | |
45 | #include "AliLog.h" | |
46 | ||
47 | #include <TMath.h> | |
9de45220 | 48 | #include <Riostream.h> |
8ff54bb6 | 49 | |
50 | /// \cond CLASSIMP | |
51 | ClassImp(AliMUONTriggerCircuit) | |
52 | /// \endcond | |
53 | ||
54 | //---------------------------------------------------------------------- | |
7103ac2d | 55 | AliMUONTriggerCircuit::AliMUONTriggerCircuit(const AliMUONGeometryTransformer* transformer) |
56 | : TObject(), | |
da142235 | 57 | fkTransformer(transformer), |
58 | fkCurrentSeg(0x0), | |
7103ac2d | 59 | fCurrentDetElem(0x0), |
60 | fCurrentLocalBoard(0x0) | |
8ff54bb6 | 61 | { |
62 | /// Constructor | |
63 | ||
7103ac2d | 64 | for (Int_t i = 1; i < AliMpConstants::NofLocalBoards()+1; ++i) { |
65 | fXpos11[i].Set(16); | |
66 | fYpos11[i].Set(31); | |
67 | fYpos21[i].Set(63); | |
68 | } | |
69 | ||
70 | for (Int_t i = 1; i < AliMpConstants::NofLocalBoards()+1; ++i) { // board begins at 1 | |
71 | ||
72 | AliMpLocalBoard* localBoard = AliMpDDLStore::Instance()->GetLocalBoard(i); | |
73 | ||
74 | if (!localBoard) | |
75 | { | |
76 | AliError(Form("Did not get localboard %d",i)); | |
77 | continue; | |
78 | } | |
79 | ||
80 | LoadXPos(localBoard); | |
81 | LoadYPos(localBoard); | |
82 | ||
83 | } | |
84 | ||
8ff54bb6 | 85 | } |
86 | ||
87 | //---------------------------------------------------------------------- | |
88 | AliMUONTriggerCircuit::~AliMUONTriggerCircuit() | |
89 | { | |
90 | /// Destructor | |
7103ac2d | 91 | for (Int_t i = 1; i < AliMpConstants::NofLocalBoards()+1; ++i) { |
92 | fXpos11[i].Reset(); | |
93 | fYpos11[i].Reset(); | |
94 | fYpos21[i].Reset(); | |
95 | } | |
96 | ||
8ff54bb6 | 97 | } |
98 | ||
99 | //---------------------------------------------------------------------- | |
100 | AliMUONTriggerCircuit::AliMUONTriggerCircuit(const AliMUONTriggerCircuit& circuit) | |
7103ac2d | 101 | : TObject(circuit), |
da142235 | 102 | fkTransformer(circuit.fkTransformer), // do not copy, just pointed to |
103 | fkCurrentSeg(circuit.fkCurrentSeg), | |
7103ac2d | 104 | fCurrentDetElem(circuit.fCurrentDetElem), |
105 | fCurrentLocalBoard(circuit.fCurrentLocalBoard) | |
8ff54bb6 | 106 | { |
107 | /// Copy constructor | |
108 | ||
7103ac2d | 109 | for (Int_t i = 1; i < AliMpConstants::NofLocalBoards()+1; ++i) { |
110 | fXpos11[i] = circuit.fXpos11[i]; | |
111 | fYpos11[i] = circuit.fYpos11[i]; | |
112 | fYpos21[i] = circuit.fYpos21[i]; | |
113 | } | |
8ff54bb6 | 114 | |
115 | } | |
116 | //---------------------------------------------------------------------- | |
117 | AliMUONTriggerCircuit& AliMUONTriggerCircuit::operator=(const AliMUONTriggerCircuit& circuit) | |
118 | { | |
119 | /// Assignment operator | |
120 | ||
121 | if (this == &circuit) return *this; | |
122 | ||
da142235 | 123 | fkTransformer = circuit.fkTransformer; |
124 | fkCurrentSeg = circuit.fkCurrentSeg; | |
7103ac2d | 125 | fCurrentDetElem = circuit.fCurrentDetElem; |
126 | fCurrentLocalBoard = circuit.fCurrentLocalBoard; | |
8ff54bb6 | 127 | |
7103ac2d | 128 | for (Int_t i = 1; i < AliMpConstants::NofLocalBoards()+1; ++i) { |
8ff54bb6 | 129 | fXpos11[i] = circuit.fXpos11[i]; |
8ff54bb6 | 130 | fYpos11[i] = circuit.fYpos11[i]; |
8ff54bb6 | 131 | fYpos21[i] = circuit.fYpos21[i]; |
7103ac2d | 132 | } |
8ff54bb6 | 133 | |
134 | return *this; | |
135 | ||
8ff54bb6 | 136 | } |
137 | ||
138 | //--------------------------------------------------------------------- | |
da142235 | 139 | void AliMUONTriggerCircuit::LoadYPos(AliMpLocalBoard* const localBoard) |
8ff54bb6 | 140 | { |
141 | /// fill fYpos11 and fYpos21 -> y position of X declusterized strips | |
142 | ||
7103ac2d | 143 | fCurrentLocalBoard = localBoard->GetId(); |
8ff54bb6 | 144 | Int_t ichamber = 0; |
145 | Int_t icathode = 0; | |
7103ac2d | 146 | |
147 | Int_t zeroDown = localBoard->GetSwitch(AliMpLocalBoard::kZeroDown); | |
148 | Int_t zeroUp = localBoard->GetSwitch(AliMpLocalBoard::kZeroUp); | |
149 | ||
168e9c4d | 150 | Int_t iline = AliMp::PairFirst(localBoard->GetPosition()); |
151 | Int_t icol = AliMp::PairSecond(localBoard->GetPosition()); | |
7103ac2d | 152 | if ( iline == 5 ) --icol; |
153 | ||
8ff54bb6 | 154 | //--- first plane |
155 | ichamber = 10; | |
7103ac2d | 156 | fCurrentDetElem = AliMpDDLStore::Instance()->GetDEfromLocalBoard(fCurrentLocalBoard, ichamber); |
8ff54bb6 | 157 | |
da142235 | 158 | fkCurrentSeg = AliMpSegmentation::Instance() |
7103ac2d | 159 | ->GetMpSegmentation(fCurrentDetElem, AliMp::GetCathodType(icathode)); |
160 | ||
161 | Int_t iFirstStrip = FirstStrip(localBoard); | |
162 | Int_t iLastStrip = iFirstStrip + 16; | |
8ff54bb6 | 163 | Int_t iStripCircuit = 0; |
7103ac2d | 164 | |
165 | FillXstrips(icol, iFirstStrip, iLastStrip, | |
166 | iStripCircuit, fYpos11[fCurrentLocalBoard]); | |
8ff54bb6 | 167 | |
168 | //--- second plane | |
169 | ichamber = 12; | |
7103ac2d | 170 | fCurrentDetElem = AliMpDDLStore::Instance()->GetDEfromLocalBoard(fCurrentLocalBoard, ichamber); |
171 | ||
da142235 | 172 | fkCurrentSeg = AliMpSegmentation::Instance() |
7103ac2d | 173 | ->GetMpSegmentation(fCurrentDetElem, AliMp::GetCathodType(icathode)); |
8ff54bb6 | 174 | |
175 | // second plane middle part | |
7103ac2d | 176 | Int_t iFirstStripMiddle = FirstStrip(localBoard); |
177 | Int_t iLastStripMiddle = iFirstStrip + 16; | |
178 | iStripCircuit = 8; | |
179 | ||
180 | FillXstrips(icol, iFirstStripMiddle, iLastStripMiddle, | |
181 | iStripCircuit, fYpos21[fCurrentLocalBoard]); | |
8ff54bb6 | 182 | |
183 | // second plane upper part | |
184 | if (zeroUp == 0) { // something up | |
185 | Int_t iFirstStripUp; | |
186 | Int_t iLastStripUp; | |
7103ac2d | 187 | Int_t icolUp = icol; |
188 | ||
8ff54bb6 | 189 | // check if we need to move to another detElemId |
168e9c4d | 190 | AliMpPad pad = fkCurrentSeg->PadByIndices(icol-1,iLastStripMiddle+1,kFALSE); |
7103ac2d | 191 | |
8ff54bb6 | 192 | if (pad.IsValid()) { // upper strips within same detElemId |
193 | iFirstStripUp = iLastStripMiddle; | |
7103ac2d | 194 | iLastStripUp = iFirstStripUp + 8; |
195 | ||
8ff54bb6 | 196 | } else { // upper strips in another detElemId |
7103ac2d | 197 | fCurrentDetElem = AliMpDDLStore::Instance()-> |
198 | GetNextDEfromLocalBoard(fCurrentLocalBoard, ichamber); | |
199 | ||
da142235 | 200 | fkCurrentSeg = AliMpSegmentation::Instance() |
7103ac2d | 201 | ->GetMpSegmentation(fCurrentDetElem, AliMp::GetCathodType(icathode)); |
8ff54bb6 | 202 | |
203 | iFirstStripUp = 0; | |
7103ac2d | 204 | iLastStripUp = iFirstStripUp + 8; |
8ff54bb6 | 205 | if (iline == 4) icolUp = icol - 1; // special case |
206 | if (iline == 5) icolUp = icol + 1; // special case | |
207 | } | |
208 | ||
7103ac2d | 209 | iStripCircuit = 24; |
210 | FillXstrips(icolUp, iFirstStripUp, iLastStripUp, | |
211 | iStripCircuit, fYpos21[fCurrentLocalBoard]); | |
8ff54bb6 | 212 | |
213 | // fill strip between middle and upper part | |
7103ac2d | 214 | fYpos21[fCurrentLocalBoard][47] = (fYpos21[fCurrentLocalBoard][46] + |
215 | fYpos21[fCurrentLocalBoard][48])/2.; | |
8ff54bb6 | 216 | } // end of something up |
217 | ||
218 | // restore current detElemId & segmentation | |
7103ac2d | 219 | fCurrentDetElem = AliMpDDLStore::Instance()->GetDEfromLocalBoard(fCurrentLocalBoard, ichamber); |
da142235 | 220 | fkCurrentSeg = AliMpSegmentation::Instance() |
7103ac2d | 221 | ->GetMpSegmentation(fCurrentDetElem, AliMp::GetCathodType(icathode)); |
8ff54bb6 | 222 | |
223 | // second plane lower part | |
224 | if (zeroDown == 0) { // something down | |
225 | Int_t iFirstStripDo; | |
226 | Int_t iLastStripDo; | |
7103ac2d | 227 | Int_t icolDo = icol; |
8ff54bb6 | 228 | |
229 | // check if we need to move to another detElemId | |
168e9c4d | 230 | AliMpPad pad = fkCurrentSeg->PadByIndices(icol-1,iFirstStripMiddle-1,kFALSE); |
8ff54bb6 | 231 | if (pad.IsValid()) { // lower strips within same detElemId |
232 | iFirstStripDo = iFirstStripMiddle - 8; | |
7103ac2d | 233 | iLastStripDo = iFirstStripDo + 8; |
234 | ||
8ff54bb6 | 235 | } else { // lower strips in another detElemId |
7103ac2d | 236 | fCurrentDetElem = AliMpDDLStore::Instance() |
237 | ->GetPreviousDEfromLocalBoard(fCurrentLocalBoard, ichamber); | |
238 | ||
da142235 | 239 | fkCurrentSeg = AliMpSegmentation::Instance() |
7103ac2d | 240 | ->GetMpSegmentation(fCurrentDetElem, AliMp::GetCathodType(icathode)); |
8ff54bb6 | 241 | |
242 | // get iFirstStrip in this module | |
da142235 | 243 | const AliMpTrigger* t = AliMpSegmentation::Instance()->GetTrigger(fkCurrentSeg); |
8ff54bb6 | 244 | const AliMpSlat* slat = t->GetLayer(0); |
7103ac2d | 245 | |
8ff54bb6 | 246 | if (iline == 5) icolDo = icol + 1; // special case |
7103ac2d | 247 | if (iline == 6) icolDo = icol - 1; // special case |
248 | ||
8ff54bb6 | 249 | const AliMpPCB* pcb = slat->GetPCB(icolDo-1); |
250 | iFirstStripDo = (pcb->Iymax() + 1) - 8; | |
251 | iLastStripDo = iFirstStripDo + 8; | |
252 | } | |
253 | ||
7103ac2d | 254 | iStripCircuit = 0; |
255 | FillXstrips(icolDo, iFirstStripDo, iLastStripDo, | |
256 | iStripCircuit, fYpos21[fCurrentLocalBoard]); | |
8ff54bb6 | 257 | |
258 | // fill strip between middle and upper part | |
7103ac2d | 259 | fYpos21[fCurrentLocalBoard][15] = (fYpos21[fCurrentLocalBoard][14] + |
260 | fYpos21[fCurrentLocalBoard][16])/2.; | |
8ff54bb6 | 261 | } // end of something down |
262 | ||
263 | } | |
264 | ||
265 | //---------------------------------------------------------------------- | |
7103ac2d | 266 | void AliMUONTriggerCircuit::FillXstrips(const Int_t icol, |
267 | const Int_t iFirstStrip, const Int_t iLastStrip, | |
268 | Int_t liStripCircuit, TArrayF& ypos) | |
269 | { | |
270 | /// fill | |
271 | Double_t xyGlobal[2] = {0.}; | |
272 | for (Int_t istrip = iFirstStrip; istrip < iLastStrip; ++istrip) { | |
273 | ||
168e9c4d | 274 | AliMpPad pad = fkCurrentSeg->PadByIndices(icol-1,istrip,kTRUE); |
7103ac2d | 275 | if ( !pad.IsValid() ) { |
276 | StdoutToAliError(cout << "Pad not found in seg " << endl; | |
da142235 | 277 | fkCurrentSeg->Print(); |
7103ac2d | 278 | cout << " ix,iy=" << icol-1 << "," << istrip << endl; |
279 | ); | |
280 | } | |
6e97fbb8 | 281 | Float_t yDim = pad.GetDimensionY(); // half size! |
7103ac2d | 282 | |
283 | XYGlobal(pad,xyGlobal); | |
284 | ||
285 | ypos[2*liStripCircuit] = xyGlobal[1]; | |
286 | if (istrip != (iLastStrip - 1)) ypos[2*liStripCircuit+1] = xyGlobal[1] + yDim; | |
287 | liStripCircuit++; | |
288 | } | |
289 | } | |
290 | ||
291 | ||
292 | //---------------------------------------------------------------------- | |
da142235 | 293 | void AliMUONTriggerCircuit::LoadXPos(AliMpLocalBoard* const localBoard) |
8ff54bb6 | 294 | { |
295 | /// fill fXpos11 -> x position of Y strips for the first plane only | |
296 | /// fXpos11 contains the x position of Y strip for the current circuit | |
297 | /// taking into account whether or nor not part(s) of the circuit | |
298 | /// (middle, up or down) has(have) 16 strips (handdled by means of switchs) | |
7103ac2d | 299 | |
300 | fCurrentLocalBoard = localBoard->GetId(); | |
301 | ||
8ff54bb6 | 302 | Int_t ichamber = 10; |
303 | Int_t icathode = 1; | |
304 | ||
7103ac2d | 305 | Int_t x2u = localBoard->GetSwitch(AliMpLocalBoard::kX2u); |
306 | Int_t x2m = localBoard->GetSwitch(AliMpLocalBoard::kX2m); | |
307 | Int_t x2d = localBoard->GetSwitch(AliMpLocalBoard::kX2d); | |
308 | Int_t zeroAllYLSB = localBoard->GetSwitch(AliMpLocalBoard::kZeroAllYLSB); | |
309 | ||
310 | Int_t iStripCircuit = 0; | |
311 | Int_t iFirstStrip = 0; | |
312 | Int_t iLastStrip = 0; | |
313 | Bool_t doubling = kFALSE; | |
8ff54bb6 | 314 | |
168e9c4d | 315 | Int_t iline = AliMp::PairFirst(localBoard->GetPosition()); |
316 | Int_t icol = AliMp::PairSecond(localBoard->GetPosition()); | |
7103ac2d | 317 | if ( iline == 5 ) --icol; |
8ff54bb6 | 318 | |
7103ac2d | 319 | fCurrentDetElem = AliMpDDLStore::Instance()->GetDEfromLocalBoard(fCurrentLocalBoard, ichamber); |
320 | ||
da142235 | 321 | fkCurrentSeg = AliMpSegmentation::Instance() |
7103ac2d | 322 | ->GetMpSegmentation(fCurrentDetElem, AliMp::GetCathodType(icathode)); |
8ff54bb6 | 323 | |
324 | // check if one needs a strip doubling or not | |
7103ac2d | 325 | if ( (x2u || x2m || x2d ) && x2m ) doubling = kTRUE; |
326 | ||
0d528e1f | 327 | |
8ff54bb6 | 328 | // check if one starts at strip = 0 or 8 (boards 26-29 and 143-146) |
7103ac2d | 329 | if (zeroAllYLSB) iStripCircuit = 8; |
8ff54bb6 | 330 | |
331 | // get iFirstStrip in this module | |
da142235 | 332 | const AliMpTrigger* t = AliMpSegmentation::Instance()->GetTrigger(fkCurrentSeg); |
8ff54bb6 | 333 | const AliMpSlat* slat = t->GetLayer(0); |
334 | ||
335 | const AliMpPCB* pcb = slat->GetPCB(icol-1); | |
336 | iFirstStrip = pcb->Ixmin(); | |
337 | ||
7103ac2d | 338 | |
0d528e1f | 339 | if (doubling || zeroAllYLSB == 1) iLastStrip = iFirstStrip + 8; |
8ff54bb6 | 340 | else iLastStrip = iFirstStrip + 16; |
341 | ||
7103ac2d | 342 | FillYstrips(iFirstStrip, iLastStrip, iStripCircuit, doubling); |
8ff54bb6 | 343 | } |
344 | ||
345 | //---------------------------------------------------------------------- | |
7103ac2d | 346 | void AliMUONTriggerCircuit::FillYstrips(const Int_t iFirstStrip, const Int_t iLastStrip, |
347 | Int_t liStripCircuit, | |
348 | const Bool_t doubling) | |
8ff54bb6 | 349 | { |
350 | /// fill | |
7103ac2d | 351 | Double_t xyGlobal[2] = {0.}; |
352 | ||
353 | for (Int_t istrip = iFirstStrip; istrip < iLastStrip; ++istrip) { | |
0d528e1f | 354 | |
168e9c4d | 355 | AliMpPad pad = fkCurrentSeg->PadByIndices(istrip,0,kTRUE); |
0d528e1f | 356 | |
8ff54bb6 | 357 | if ( !pad.IsValid() ) |
358 | { | |
359 | StdoutToAliError(cout << "Pad not found in seg " << endl; | |
da142235 | 360 | fkCurrentSeg->Print(); |
8ff54bb6 | 361 | cout << " ix,iy=" << istrip << "," << 0 << endl; |
362 | ); | |
363 | } | |
6e97fbb8 | 364 | Float_t xDim = pad.GetDimensionX(); // half size! |
8ff54bb6 | 365 | |
7103ac2d | 366 | XYGlobal(pad,xyGlobal); |
8ff54bb6 | 367 | |
7103ac2d | 368 | if (!doubling) { |
369 | fXpos11[fCurrentLocalBoard].AddAt(xyGlobal[0], liStripCircuit); | |
370 | } else if (doubling) { | |
371 | ||
372 | fXpos11[fCurrentLocalBoard].AddAt(TMath::Sign(1.,xyGlobal[0]) * | |
373 | (TMath::Abs(xyGlobal[0]) - xDim/2.), 2*liStripCircuit); | |
374 | ||
375 | fXpos11[fCurrentLocalBoard].AddAt(TMath::Sign(1.,xyGlobal[0]) * | |
376 | (TMath::Abs(fXpos11[fCurrentLocalBoard][2*liStripCircuit]) + xDim), | |
377 | 2*liStripCircuit + 1); | |
378 | } | |
379 | ||
8ff54bb6 | 380 | liStripCircuit++; |
381 | } | |
382 | } | |
383 | ||
384 | //---------------------------------------------------------------------- | |
7103ac2d | 385 | void AliMUONTriggerCircuit::XYGlobal(const AliMpPad& pad, |
386 | Double_t* xyGlobal) | |
8ff54bb6 | 387 | { |
7103ac2d | 388 | /// returns pad x & y positions and x & y pad dimensions in global coordinates |
389 | /// note: no need for transformation for pad dimensions | |
8ff54bb6 | 390 | |
7103ac2d | 391 | // get the pad position and dimensions |
6e97fbb8 | 392 | Double_t xl1 = pad.GetPositionX(); |
393 | Double_t yl1 = pad.GetPositionY(); | |
7103ac2d | 394 | Double_t zg1 = 0; |
395 | ||
396 | // positions from local to global | |
da142235 | 397 | fkTransformer->Local2Global(fCurrentDetElem, xl1, yl1, 0, |
7103ac2d | 398 | xyGlobal[0], xyGlobal[1], zg1); |
8ff54bb6 | 399 | } |
7103ac2d | 400 | |
8ff54bb6 | 401 | |
402 | //---------------------------------------------------------------------- | |
7103ac2d | 403 | //--- methods which return member data related info |
404 | //---------------------------------------------------------------------- | |
405 | Float_t AliMUONTriggerCircuit::GetY11Pos(Int_t localBoardId, Int_t istrip) const | |
8ff54bb6 | 406 | { |
7103ac2d | 407 | /// returns Y position of X strip istrip in MC11 |
408 | return fYpos11[localBoardId][istrip]; | |
8ff54bb6 | 409 | } |
8ff54bb6 | 410 | //---------------------------------------------------------------------- |
7103ac2d | 411 | Float_t AliMUONTriggerCircuit::GetY21Pos(Int_t localBoardId, Int_t istrip) const |
8ff54bb6 | 412 | { |
7103ac2d | 413 | /// returns Y position of X strip istrip in MC21 |
414 | return fYpos21[localBoardId][istrip]; | |
8ff54bb6 | 415 | } |
8ff54bb6 | 416 | //---------------------------------------------------------------------- |
7103ac2d | 417 | Float_t AliMUONTriggerCircuit::GetX11Pos(Int_t localBoardId, Int_t istrip) const |
8ff54bb6 | 418 | { |
7103ac2d | 419 | /// returns X position of Y strip istrip in MC11 |
420 | return fXpos11[localBoardId][istrip]; | |
8ff54bb6 | 421 | } |
422 | ||
423 | //---------------------------------------------------------------------- | |
7103ac2d | 424 | Int_t AliMUONTriggerCircuit::FirstStrip(AliMpLocalBoard* localBoard) |
8ff54bb6 | 425 | { |
426 | /// returns the first strip from mapping for board boardName | |
427 | /// take care of special case for boards RC1L6B12 & LC1L6B12 | |
428 | Int_t iFirstStrip = -1; | |
7103ac2d | 429 | Int_t boardNumber = atoi(localBoard->GetName()+6); |
430 | ||
168e9c4d | 431 | Int_t iline = AliMp::PairFirst(localBoard->GetPosition()); |
432 | Int_t icol = AliMp::PairSecond(localBoard->GetPosition()); | |
7103ac2d | 433 | if ( iline == 5 ) --icol; |
434 | ||
8ff54bb6 | 435 | switch (boardNumber) |
436 | { | |
437 | case 12: | |
438 | iFirstStrip = 0; | |
439 | break; | |
440 | case 34: | |
441 | iFirstStrip = 16; | |
442 | break; | |
443 | case 56: | |
444 | iFirstStrip = 32; | |
445 | break; | |
446 | case 78: | |
447 | iFirstStrip = 48; | |
448 | break; | |
449 | } | |
7103ac2d | 450 | if (icol == 1 && iline == 6) iFirstStrip += 16; // special case |
8ff54bb6 | 451 | return iFirstStrip; |
452 | } | |
453 | ||
afeb2b33 | 454 | //---------------------------------------------------------------------- |
455 | Float_t AliMUONTriggerCircuit::PtCal(Int_t localBoardId, Int_t istripX, Int_t idev, Int_t istripY) const{ | |
456 | /// returns calculated pt for circuit/istripX/idev/istripY according | |
457 | /// to the formula of the TRD. Note : idev (input) is in [0+30] | |
458 | ||
459 | // Int_t jdev = idev - 15; // jdev in [-15+15] | |
460 | Int_t istripX2=istripX+idev+1; // find istripX2 using istripX and idev | |
461 | ||
462 | Float_t yPosX1=fYpos11[localBoardId][istripX]; | |
463 | Float_t yPosX2=fYpos21[localBoardId][istripX2]; | |
464 | Float_t xPosY1=fXpos11[localBoardId][istripY]; | |
465 | ||
466 | // Z distance between IP and center of dipole | |
467 | Float_t zf= TMath::Abs(0.5 *(AliMUONConstants::CoilZ() + AliMUONConstants::YokeZ())); | |
468 | Float_t z1=AliMUONConstants::DefaultChamberZ(10); | |
469 | Float_t z2=AliMUONConstants::DefaultChamberZ(12); | |
470 | Float_t thetaDev=(1./zf)*(yPosX1*z2-yPosX2*z1)/(z2-z1); | |
471 | Float_t xf=xPosY1*zf/z1; | |
472 | Float_t yf=yPosX2-((yPosX2-yPosX1)*(z2-zf))/(z2-z1); | |
473 | return (3.*0.3/TMath::Abs(thetaDev)) * TMath::Sqrt(xf*xf+yf*yf)/zf; | |
474 | } |